Preheat oven to 375°F. Grease 4-cup baking dish; set aside.
Beat cream cheese, mayonnaise, sour cream, lemon juice and lemon zest with electric beaters until smooth; stir in half of the Cheddar Cheese and 3/4 cup of the Parmesan cheese, green onions, 2 tbsp of the parsley, garlic, Worcestershire sauce, hot sauce, salt and pepper. Stir in chicken. Scrape into prepared dish; sprinkle remaining Cheddar over top. Toss crushed crackers with butter and remaining Parmesan cheese; sprinkle over top.
Bake for 20 to 25 minutes or until bubbly, hot and lightly golden brown on top. Sprinkle with remaining parsley. Serve with crackers.
Tip: Serve with carrots, celery sticks, boiled potatoes or steamed broccoli spears.